General Information

Component Location










General Description

To make system be more efficient, Body Control Module (hereinafter referred to BCM) applies CAN (Controller Area Network) communication system. CAN is a kind of communication system which can make related component share system information with just two line instead of complex individual signal line. It consists of related component and CAN BUS which consists of CAN_high line and CAN_low line. Each component can send and receive information by binary signal via CAN BUS. The related components for BCM are BCM, ADM, DDM and IMS (Seat, S/C), Multifunction switch connect with BCM by LIN communication line and delivers input signal made by driver to BCM.

DTC Description

The ECM sets DTC B1629 if there's any fault in data signal received from multifunction switch

DTC Detecting Condition





Schematic Diagram










Signal Waveform




fig. 1) Signal waveform of LIN Line communication